Harvester-reel.



No; 737,848. PATENTED SEPT. 1, 1903.

E. A. JOHNSTON.

HARVESTER REEL.

APPLICATION FILED MAY 1a, 1902.

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No. 737,848. PATENTED SEPT. 1-,1903.

- E. A. JOHNSTGN.

HARVESTER REEL.

APPLICATION FILED MAY 13. 1902.

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PATENTED SEPT. 1, 1903. E. A. JOHNSTON. HARVESTER REEL.

APPLICATION FILED MAY 13, 1902.

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PAT-ENTED- SEPT. 1 1903.

B. A. JOHNSTON; HARVESTER REEL.-

APPLICATION FILED MAY 13, 1902. H0 MODEL. 6 GETS-{SHEET 4.

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E. A. JOHNSTON.

HARVESTER REEL. APPLICATION FILED Mn 13. 1902.

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No. 737,848. Patented September 1, IQOS.

UNITED STATES PATENT OFFICE.

EDWARD A. JOHNSTON, OF CHICAGO, ILLINOIS, ASSIGNOR TO MCCORMICK HARVESTING MACHINE COMPANY, OF CHICAGO, ILLINOIS.

HARVESTER-REEL.

SPECIFICATION forming part of Iletters Patent No. 737,848, dated September 1, 1903. Application filed May 13, 1902. Serial No. 107,169. (No model.)

To all whom it y 00711067771: 6 is a sectional detail of the gearing at the Be it known that I, EDWARD A. JOHNSTON, upper end of'the telescopic shaft shown in a citizen of the United States, residing in Chi- Fig. '5, and Fig. 7 is a detail front elevation cage, county of Cook, State of Illinois, have of the same parts.

invented certain new and useful Improve- Referring to the drawings, (t denotes the ments in Harvester-Reels; and I do hereby inner shoe of a mowing-machine of any predeclare the following to be a full, clear, and ferred type and construction. As usual, it exact description of the invention, such as is rigidly attached to the inner end of the will enable others skilled in the art to which finger-bar b of the machine, and it is con- 60 10 it appertains to make and use the same. nected by the ordinary hinge-joint c with a This invention relates to harvester-reels, yoked, which is sleeved on the outer end of and especially to the manner of supporting the arm 6, forming one member of a couplingand driving the reels in mowing-machines frame, the construction of which is now quite that are convertible intoharvesters or reapcommon in the art and by means of which 65 ers by the attachment thereto of grain-rethe cutter-bar and shoe are hinge-jointed to ceiving platforms in rear of the cutter-bar. the main frame of the machine. In this class of machines the reel is usually Rigidly secured to the shoe a there is a supported at its inner end only and overbracket f, which rises vertically from apoint hangs the cutting apparatus from an upnear the rear end of the shoe, as best shown 70. standing post which rises from the innershoe. in Fig. 2, and the vertical reel-post g is se- As this shoe rises and falls, and especially cured to the bracket by one or more bolts h, when the level of the two shoes changes, the so that the weight of the post and the parts angle of the vertical post varies, so that the carried thereby is entirely supported by the lateral position of the gear on the inner end shoe at a point grainward of its hinge-joint 75 of the reel-shaft changes with respect to the connection a with the yoke d. An additional point from which its driving power is taken. support for the post and bracket is provided As the latter is necessarily a relatively fixed by the strap L', which is secured at its forward point, some sort of compensating or equalizend near the toe of the shoe and extends uping gear is necessary to communicate the ward to the point where the post is secured 8o power to the reel-shaft, and it is to this parto the bracket,where the bolt h passes through ticular part of the machine that the present the bracket, the post, and the strap.

invention is confined. The reel-shaft a and its arms or beaters b In the accompanying drawings, forming are journaled in a sleeve 0, carried at the part of this specification, the invention is outer end of an arm d, which is journaled in 3 5 illustrated in connection with a machine hava bearing 6, that is secured to the post g near ing a slatted platform attached in rear of the its upper end. The arm at swings in this cutter-bar and arranged to tilt rearwardly, bearing and is adjustable at different elevaso as to drop the grain in gavels directly betions, so as to raise and lower the position of hind the bar, and the invention will be best the reel-arms, a toothed sector-plate f being o understood from the following description secured to the post adjacent to the bearing e, when taken in connection with these drawinto the teeth of which plate a locking-dog on ings, wherein the hand-lever g engages, so as to lock the Figure 1 is a plan view of the entire mareel in its difierent positions. chine. Fig. 2 is a sectional elevation on the The power to drive the reel is taken directly 5 line 2 2, Fig. 1, looking in the direction of from the axle a of the machine, its inner end the arrow. Figs. 3 and 4 are front views being provided with a bevel-gear b having illustrating different inclinations from the curved teeth 0 as best shown in Fig. 6. vertical which the reel-post assumes as the Sleeved on a trunnion on the outside of the level of the inner and outer shoes changes. gear b, which is virtually an extension of the I00 50 Fig. 5 is a detail side elevation of the reel axle a there is a yoke 0 having its arm driving and adjusting mechanism only. Fig. projecting radially in almost opposite directions, and a similar yoke 61 is pivoted to the arms of the sleeved yoke and has a bearing e at right angles to the line of the pivot. The yoke d forms the support for the lower end of a telescopic shaft f which extends diagonally upward and forward to the reel-shaft a. This shaft consists of a solid portion 9 which is angular in cross-section and slides within a tubular portion, and in the preferred construction the tubular portion is journaled at its lower end in the bearing 6 of the pivoted yoke d Secured to the upper end of the tubular portio'n f is the collar f which is provided with an opening of a cross-sectioncorresponding to that of the solid portion 9 which fits therein. This diagonal shaft transmits driving power to the reel-shaft from the gear 19 on the axle of the machine, the connection between the gear and the shaft being made by a bevel-gear h secured on the lower end of the shaft below the bearing (2 and between the arms of the yoke 01 The teeth of the gear h are curved reversely with respect to the curvature of the teethrof the gear 19 and the point of tangency of pitch-lines of the intermeshing teeth of these two gears is arranged, as best shown in Fig. 6, in line with the pivots between the arms of the two yokes c and (P, the object of this arrangement be ing to permit the diagonal shaft to change its angle with respect to the axle of the machine without causing the gears to bind or interfere with their free driving action.

At the upper end of the telescopic shaft f there is a bevel-gear a having crown-shaped teeth, which are in all respects like the teeth of the gear 72. at the lower end of the shaft. This gear intermeshes with a similar pinion b on the reel-shaft a, and the upper end of the telescopic shaft is united to the reel-shaft by means of yokes c and 01 The yoke is journaled upon the projecting end of the reelshaft 0. outside of the gear 19 and has radial arms 6 f extending substantially in opposite directions, by means of which it is pivotally connected to similar arms 9 h on the yoke (1 v The arrangement for supporting and driving the gears, by means of which the upper end of the telescopic shaft is connected to the reel-shaft, is the same, in all essentials like that at the bottom of the shaft, where it is connected to the axle of the machine by the intermeshing gears 19 and 71 The yokes 0 and a rock on their respective shafts as the position of the reel is raised or lowered, thereby permitting the diagonal telescopic shaft to accommodate its angular position to the different elevations of the reel, and the pivotal connection between the arms of the yokes 0 0 permits the diagonal shaft to change its position relative to a vertical plane, as the lateral position of the reel-shaft gear is altered by the rising and falling of the cutting apparatus as a whole or of the change in level between the inner and outer ends of the cutter-bar.

Fig. 4 illustrates a machine working on level ground with both ends of the bar at the same elevation. In this position the reelpost is truly vertical, and the reel drive-shaft f occupies nearly a vertical plane fore and aft of the machine. Any elevation of the cutting apparatus, and especially any such elevation of the outer end of the finger-bar, as indicated in Fig. 3, tilts the reel-supporting post 9 over toward the stubble side of the machine, and in order for the telescopic shaft to drive the reel-shaft in its tilted position it is necessary that it should move bodily with the reel-post; This lateral movement of the diagonal shaft is permitted by means of the yokes d and d being pivotally connected by their arms, respectively, to the arms of the yokes c and c on lines at right angles to the pivotal connection of the latter yokes with the axle of the machine and the reel-shaft. The diagonal shaft has therefore a universal-joint connection at its lower end with the part which drives it and at its upper end with the part which is driven by it, and the result of this connection is that the length and position of the shaft will automatically accommodate itself to the vertical adjustments of the reel, and the shaft will also accommodate itself as regards its lateral position and inclination with the tilting movements of the reehpost due to the causes already mentioned.

Having thusdescribed my invention, what I claim, and desire to secure by Letters Patent, is-

1. The combination with the inner shoe of amower, of a post rising therefrom, a reel supported by said post, a gear on the inner end of the axle of the machine, a gear on the reel-shaft, and a line-shaft having gears at opposite ends meshing with the gears on the machine-axle and reelshaft, and yokes in which the line-shaft is journaled at its ends said yokes pivoted on a line passing through the points of tangency of the pitch-lines between the gears.

2. The combination with the inner shoe of a mower, of a post rising therefrom, a reel supported by said post, a yoke on the inner end of the axle of the machine, a similar yoke on the reel-shaft, gears on the axle and reelshaft adjacent to said yokes, and a line-shaft having gears at its ends meshing with the gears on the axle and reel-shaft, said lineshaft being journaled at its ends in yokes pivoted to the first-named yokes in a line passing through the points of tangency of the pitch-lines between the gears.

3. The combination with a reel-post, of a reel and its shaft adjustably supported on the post, a telescopic driving-shaft pivoted at its lower end, intermeshing gears on the reelshaft and upper end of the telescopic shaft, a yoke journaled on the reel-shaft and having oppositely-projecting radial arms, and a similar yoke in'which the upper end of the telescopic shaft is journaled, said yokes be ing pivotally connected by their arms on a ICC line passing through the points of tangency of the pitch-lines between the gears.

4:. The combination with a reel-post, of a reel and its shaft adj ustably supported on the post, a telescopic drive-shaft having a gear connection with the reel-shaft, a yoke journaled on the inner end of the axle of the machine and having oppositely-projecting radial arms, a similar yoke in which the lower end of the telescopic shaft is journaled, and intermeshing gears connecting the axle and telescopic shaft, said yokes being pivoted together by their arms on a line passing through the points of tangency of the pitch-lines between the gears.

5. The combination with the inner shoe of Witnesses:

' CHARLES N. CHAMBERS,

J. L. HEOHT. 

